French Speaking - Senior Java Engineer

Senior Software Engineer -ENGLISH AND FRENCH SPEAKING

Contract to Perm Opportunity

As a Senior Software Engineer on the global checkout team, you will take full ownership of critical application components that process millions of transactions in high‑pressure, high‑stakes TDD-driven environments. These systems are the revenue backbone of the business. This is not a greenfield project. You will own, maintain, and evolve established production systems with years of battle-tested code. You'll be responsible for making decisive technical decisions on legacy architecture while simultaneously driving modernization efforts.

If you thrive on understanding complex existing systems, taking ownership of technical debt, and delivering measurable business value, this role is for you.

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Essential Skills

• 7+ years of backend development experience with production systems.
• 5+ years working in Agile environments, taking ownership of features and components.
• 3+ years of DevOps experience—you own your code in production.
• Expert-level development skills with established codebases.
• Strong experience with Spring Boot and modern frameworks.
• Deep understanding of Design Patterns and SOLID principles applied to real-world systems.
• Proven experience working with legacy codebases—refactoring, modernizing, extracting business value.
• experience with SOA/microservices architectures in production environments.
• Hands-on experience with AWS cloud infrastructure.
• Working knowledge of relational databases (Oracle, MySQL).
• Strong communication skills for remote collaboration across teams and time zones.
• experience working in high-pressure test‑driven development (TDD) environments is highly valued

Additional Skills & Qualifications

• experience with serverless AWS services (Lambda, Step Functions, DynamoDB) is a strong plus.
• Bilingual: French and English. (Strongly required for cross‑regional collaboration.)

Location

London, UK

Rate/Salary

500.00 - 650.00 GBP Daily

Trading as TEKsystems. Allegis Group Limited, Maxis 2, Western Road, Bracknell, RG12 1RT, United Kingdom. No. 2876353. Allegis Group Limited operates as an Employment Business and Employment Agency as set out in the Conduct of Employment Agencies and Employment Businesses Regulations 2003. TEKsystems is a company within the Allegis Group network of companies (collectively referred to as "Allegis Group"). Aerotek, Aston Carter, EASi, Talentis Solutions, TEKsystems, Stamford Consultants and The Stamford Group are Allegis Group brands. If you apply, your personal data will be processed as described in the Allegis Group Online Notice available at https://www.allegisgroup.com/en-gb/-notices.

To access our Online Notice, which explains what information we may collect, use, share, and store about you, and describes your rights and choices about this, please go to https://www.allegisgroup.com/en-gb/-notices.

We are part of a global network of companies and as a result, the personal data you provide will be shared within Allegis Group and transferred and processed outside the UK, Switzerland and European Economic Area subject to the protections described in the Allegis Group Online Notice. We store personal data in the UK, EEA, Switzerland and the USA. If you would like to exercise your rights, please visit the "Contacting Us" section of our Online Notice at https://www.allegisgroup.com/en-gb/-notices for details on how to contact us. To protect your and security, we may take steps to verify your identity, such as a password and user ID if there is an account associated with your request, or identifying information such as your address or date of birth, before proceeding with your request. If you are resident in the UK, EEA or Switzerland, we will process any access request you make in accordance with our commitments under the UK Data Protection Act, EU-U.S. Shield or the Swiss-U.S. Shield.